Shandong Jeno Steel Group Co., Ltd.
US 309/309S (UNS S30900/S30908) steel
Classification :
Keywords: Handheld refractometer
PRODUCT DETAILS
Product information
TYPES 309 AND 309S are austenitic chromium-nickel stainless steels that provide excellent corrosion resistance and heat resistance plus good strength at room and elevated temperatures. Type 309S is identical to Type 309 except for a lower carbon content that minimizes carbide precipitation and improves weldability.
Alloy 309 and 309S is best known for high temperature service. This alloy works well up to 2000 °F, especially if oxidation resistance is required. 309 and 310 stainless steel are premier high temperature performers among the common stainless grades available from our stock. High nickel and chromium content and a coarse grain structure result in:
- Improved resistance to cyclic oxidation
- Increased resistance to sulfidation
- Better high temperature strength
- Improved resistance to intergranular corrosion
309S (UNS S30908) stainless steel is the low carbon version of the alloy. It is utilized for ease of fabrication.
309H (UNS S30909) is a high carbon modification developed for enhanced creep resistance. It most instances the grain size and carbon content of the plate can meet both the 309S and 309H requirements. When heated between 1202 – 1742°F (650 – 950°C) the alloy is subject to sigma phase precipitation. A solution annealing treatment at 2012 – 2102°F (1100 – 1150°C) will restore a degree of toughness. Alloy 309 can be easily welded and processed by standard shop fabrication practices.
Technical data
Chemical Composition
| Grade | C | Si | P | S | Cr | Mn | Ni | Fe |
| 309 | 0.20 max | 1.0 max | 0.045 max | 0.030 max | 22.0 - 24.0 | 2.0 max | 12.0 - 15.0 | Remainder |
| 309S | 0.08 max | 1.0 max | 0.045 max | 0.030 max | 22.0 - 24.0 | 2.0 max | 12.0 - 15.0 | Remainder |
Mechanical Properties
| Grade | Tensile Strength (ksi) | 0.2% Yield Strength (ksi) | Elongation% in 2 inches |
| 309 | 75 | 30 | 40 |
| 309S | 70 | 25 | 40 |
Physical Properties
| 309 | 309S | Temperature in °C | |
| Density | 7.9 g/cm³ | 8.03 g/cm³ | Room |
| Specific Heat | 0.12 Kcal/kg.C | 0.12 Kcal/kg.C | 22° |
| Melting Range | 1399 - 1454 °C | 1399 - 1454 °C | - |
| Modulus of Elasticity | 200 KN/mm² | 200 KN/mm² | 22° |
| Electrical Resistivity | 78 µΩ.cm | 78 µΩ.cm | Room |
| Coefficient of Expansion | 14.9 µm/m °C | 14.9 µm/m °C | 20 - 100° |
| Thermal Conductivity | 15.6 W/m -°K | 15.6 W/m -°K | 20° |
FAQ
Q. Can I have a sample order for stainless steel sheet plate products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q. What about the lead time?
A:Sample needs 3-5 days;
Q. Do you have any MOQ limit for stainless steel sheet plate products order?
A: Low MOQ, 1pcs for sample checking is available
Q. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional. For mass products, ship freight is prefered.
Q. Is it OK to print my logo on products?
A: Yes. OEM and ODM are available for us.
Q: How to ensure the quality?
A:Mill Test Certificate is supplied with shipment. If needed, a Third Party Inspection is acceptable
Warehouse storage
Shandong Jienuo Metal Products Co., Ltd. has a registered capital of 250 million yuan, more than 635 employees, 100 million yuan of property/plant equipment, covering an area of more than 300 acres, and has passed the international quality management system, energy management system, occupational health and safety management system and other standards. The company has advanced production equipment, superb technical force, excellent management and technical personnel, and strong financial strength to provide a strong guarantee for the production of high-quality, sophisticated and cutting-edge products.
Packing and delivery
The company has ISO9001 certification, EU CE10219 system certification, and Swiss SGS quality standard certification. In the future, the company will be a comprehensive modern enterprise featuring international trade and modern logistics as its development direction. Work together to make unremitting efforts for the green future of the steel industry in China and the world.
Application field
Widely used in prefabricated steel structure buildings, glass curtain wall engineering, steel structure engineering, large venues, airport construction, highways, roads, decorative guardrails, tower crane manufacturing, photovoltaic projects, greenhouse agricultural shanty buildings, bridge manufacturing, ships, automobile manufacturing, machinery In many fields such as manufacturing, it has been well received in major construction projects.
Cooperation transaction
Customer Visit Feedback
At the same time, we also look forward to sincere cooperation with customers and friends from all over the world, mutual benefit and win-win results, and common development, and create brilliant!
CERTIFICATE OF HONOR
COOPERATIVE PARTNER
RELATED PRODUCTS
GET A FREE QUOTE